改性磷脂的性质及其在乳化炸药中的应用  

Properties of Modified Phospholipids and Its Application in Emulsion Explosive

作　　者：刘燕[1] 冯玲琴[1] 卫延安[1] 

机构地区：[1]南京理工大学化工学院,江苏南京210094

出　　处：《火炸药学报》2008年第4期30-34,共5页Chinese Journal of Explosives & Propellants

摘　　要：为开发用于乳化炸药的新型复合乳化剂,利用化学改性后的大豆磷脂与Span80按照一定比例混合配制复合乳化剂。研究了改性磷脂的乳化力与分散力,采用DSC分析了复合乳化剂与硝酸铵的相容性,并通过单滴法和高低温循环等试验考察了乳化体系的油膜强度和稳定性能。结果表明,改性后的磷脂具有良好的乳化力和分散力,与硝酸铵的相容性较好,复合乳化剂的界面吸附膜强度增加,乳胶的稳定性提高。用复合乳化剂制备的乳化炸药爆速达3 300m/s,猛度为12.5mm,殉爆距离超过3 cm,各项性能均符合GB 18095-2000的要求。In order to develop new composite emulsifiers, the mixture of Span80 and chemical modified phospholipids according to proportion in emulsion explosive was used. The emulsifying and dispersive ability of the chemical modified phospholipids, compatibility of the composite emulsifiers and AN were performed by DSC. The storage stability and oil film intensity of emulsion obtained by hiqh low temperature cycle and single droplet method were studied. The results show that the chemical modified phospholipids have excellent emulsifying and dispersive ability. The compatibility of the composite emulsifiers with AN is good. The storage stability and oil film intensity of emutsion are enhanced. The emulsion explosive prepared by the composite emulsifiers conform to specifications of standardization method GB18095-2000. Its detonation velocity is 3 a00m/s, brisanee 12.5 mm and sympathetic detonation over 3cm.

关 键 词：应用化学 改性磷脂 乳化炸药 复合乳化剂 大豆磷脂 SPAN80 

分 类 号：TQ423.92[化学工程] TS229[轻工技术与工程—粮食、油脂及植物蛋白工程]